Answer 4.2:8
From Förberedande kurs i matematik 1
(Difference between revisions)
			  			                                                      
		          
			 (Ny sida: {| width="100%" cellspacing="10px" | |width="100%" | <math>\ell\cos \gamma=a \cos \alpha - b\cos \beta </math> |})  | 
				m  (Svar 4.2:8 moved to Answer 4.2:8: Robot: moved page)  | 
			
Current revision
| \displaystyle \ell\cos \gamma=a \cos \alpha - b\cos \beta | 
